What is the cheapest airline to fly from Casper to Portland round-trip?

Flying on United Airlines is currently your cheapest option to Portland, with prices starting at $338. United Airlines is 16% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest month to book a flight from Casper to Portland?

Currently, November is the cheapest month in which you can book a flight from Casper to Portland (average of $277). Flying from Casper to Portland in March is currently the most expensive (average of $368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Casper to Portland?

Travelers seeking maximum savings on their Casper to Portland flight should consider departing on Friday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest day to fly round-trip from Casper to Portland?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Portland. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Casper to Portland?

Our data shows that February tends to be the cheapest month to fly to Portland from Casper. Users have commonly found prices around $405 for the month, but tickets can be as low as $278. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from CPR to PDX?

It’s typically best to fly out from Casper to Portland in the morning. Doing so could potentially save you 43% on the flight price compared to flying at noon, which is usually more expensive.

Can I find deals for flights from Casper to Portland that include hotel bookings?

Yes. In addition to deals on Casper to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Casper to Portland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Casper to Portland.

Can I find deals for business class flights from Casper to Portland?

Yes. Cheapflights offers flight deals from Casper to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$338+ Flights from Casper to Portland

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Cheap flight deals from Casper to Portland

Round-trip from	$338 (United Airlines)
Popular in	December
Cheapest in	February
Average price	$413

From Casper Natrona County to Portland

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($36 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from Casper to Portland

Cheapest flights from Casper to Portland
Explore the most affordable flight options available from Casper to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 3, 2025.

sam. 9/61:37 pmCPR - PDX

1 stop4h 45mUnited Airlines

jeu. 9/2510:50 amPDX - CPR

1 stop8h 27mUnited Airlines

Deal found 7/2

$338

Best flights from Casper to Portland
Discover carefully curated flight deals from Casper to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated juillet 3, 2025.

sam. 9/61:37 pmCPR - PDX

1 stop4h 45mUnited Airlines

jeu. 9/2510:50 amPDX - CPR

1 stop8h 27mUnited Airlines

Deal found 7/2

$338

Last-minute flights from Casper to Portland
Discover last-minute flight deals from Casper to Portland. Data last updated juillet 3, 2025 and is based on user searches.

mer. 7/163:16 pmCPR - PDX

1 stop8h 00mUnited Airlines

dim. 7/205:00 amPDX - CPR

1 stop6h 39mUnited Airlines

Deal found 7/1

$410

One-way flights from Casper to Portland
Search for one-way flight options from Casper to Portland. Find affordable one-way fares based on user searches. Data last updated juillet 3, 2025.

dim. 8/35:59 pmCPR - PDX

1 stop24h 37mUnited Airlines

Deal found 7/2

$367

Cheapflights Fare Finder

Use the filters below to find and compare flights from Casper to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

sam. 9/6

1:37 pm-5:22 pm

1 stop4h 45m

Portland

jeu. 9/25

10:50 am-8:17 pm

1 stop8h 27m

$338

CasperPortland

CPR - PDX

CPRPDX

Casper Natrona County

dim. 8/3

5:59 pm-5:36 pm

1 stop24h 37m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Casper to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Casper with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Portland

Read reviews from past customers who have flown United Airlines from Casper to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What is the cheapest airline to fly from Casper to Portland round-trip?
Flying on United Airlines is currently your cheapest option to Portland, with prices starting at $338. United Airlines is 16% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from Casper to Portland that include hotel bookings?
Yes. In addition to deals on Casper to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Casper to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Casper to Portland.
Can I find deals for business class flights from Casper to Portland?
Yes. Cheapflights offers flight deals from Casper to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Casper to Portland?
Currently, November is the cheapest month in which you can book a flight from Casper to Portland (average of $277). Flying from Casper to Portland in March is currently the most expensive (average of $368). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Other flights to Portland

Top airline flying from Casper to Portland

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$278	Average$446	FlexibilityNo cancel fee	On-time69%

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$338+ Cheap flights from Casper to Portland (CPR - PDX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Casper to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Casper to Portland

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Casper to Portland

Cheapest flights from Casper to PortlandExplore the most affordable flight options available from Casper to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 3, 2025.

Explore the most affordable flight options available from Casper to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Casper to Portland that are best for you.

Best time to book a flight from Casper to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Casper with our price prediction graph.

Reviews of airlines servicing Portland

Read reviews from past customers who have flown United Airlines from Casper to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Casper to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Casper to Portland round-trip?

Can I find deals for flights from Casper to Portland that include hotel bookings?

How can I find direct flights from Casper to Portland?

Can I find deals for business class flights from Casper to Portland?

What is the cheapest month to book a flight from Casper to Portland?

Traveling to a place near Casper?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Casper to Portland

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Top airline flying from Casper to Portland

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Cheapest flights from Casper to Portland
Explore the most affordable flight options available from Casper to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 3, 2025.